James moebison



(ModeL) 1 J. MORRISON. J12,

I 'PLASTERING.

INVENTOR ATTORNEY-S.

Patented Apr. 29, 1884.

UNITED STATES PATENT JAMES MORRISON, JR, OF NEW YORK, N. Y.

DIPLASTERING,

SPECIFICATION forming-part of Letters Patent No. 297,832, dated April 29, 1884-.

Application August 7, 1883. model.)

To all whom it may concern Be it known that 1, JAMES MORRISON, J r.,

of the city, county, and State of New York,

have invented a new and Improved Plastering, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved plastering slab which can be secured and fastened to the walls and ceilings, and which is fire and water proof.=

The invention consists in plastering made of a plastic mass spread between and over strands of cocoanut fiber, which holds the particles of the mass together when dry, and gives the slab or plate thus formed elasticity, strength, and durability. The outer' surface of the slab is roughened and then providedwith a coat of hard finish.

' Reference is to be had to the accompanying drawings, forming a part of this specification,

in whichsimilar letters of reference indicate.

corresponding parts in all the figures.

Figure l is a face view of my improved plastering, showing part unfinished. Fig. 2

is a longitudinal sectional elevation of the same on the line w m, Fig. 1.. Fig. 3 is a crosssectional elevation of the same on thelineg y,

Fig. 1.

In making my improved plastering, I provide a plastic mass of lime, plaster-of-paris, alum, and white vitriol, and then make slabs or plates five-eighths of an inch thick by spreading this mass on a suitable surface. WVhile spreading the mass, cocoanut fibers A, which are quitelong,are arranged in parallel strands and layers, and the plastic mass is spread-between and over them. The cocoanut fiber is very strong and durable, and unites and binds the particles of the mass together, and when the plates have hardened the cocoanut fiber gives them the required elasticity and tenacity, and prevents them from cracking and splitting while nails arebeing driven through them. The upper surface of the slab is roughened by pressing a piece of bagging or netting on the mass before it hardens. The slabs are then nailed or otherwise secured to the walls and ceilings, and. then provided with a coating of hard finish, B, which is applied on the roughened surface O,on which it holds Very firmly. I am aware that vegetable fibers reduced to fine filaments and cut into short lengths "have heretofore been mixed with mortar or cement as a substitute for animal-hairin common use; and I am also aware that a molded plaster slab formed of lime,plaster, alum, and ashes, and provided with a central'wire net, a tenon at one end,and a groove at the opposite end, is old, and I therefore lay no claim to such inyentions.

Having thus described my inve-ntio11,I claim as new and desire to secure by Letters Patent- 1. A slab made of plastic plastering material and longstrands of cocoanut fibers extending longitudinally the length of the slab and embedded therein, as set forth.

2. As an improved article of manufacture, a slab made of plastic plastering material and long strands of cocoanut fibers embedded therein,the upper face of the slab being roughened to receive a hard finish, as set forth.

JAMES MORRISON, JR. 

